1. Department of MedicineMetabolic Bone Diseases UnitDivision of EndocrinologyCollege of Physicians & SurgeonsColumbia UniversityNew YorkNYUSA
2. Regional Bone CenterHelen Hayes HospitalWest HaverstrawNew YorkUSA
3. Department of PathologyCollege of Physicians & SurgeonsColumbia UniversityNew YorkNYUSA